Aventurine beryl 1.700ct loose
Sale price¥9,800
Aventurine beryl 1.500ct loose
Sale price¥8,800
Conch pearl 0.800ct loose
Sale price¥28,800
Conch pearl 1.990ct loose (with flame pattern)
Sale price¥39,800
Pink spinel 0.591ct loose
Sale price¥12,800
Pink spinel 0.777ct loose
Sale price¥17,800
Pink spinel 0.594ct loose
Sale price¥12,800
Pink spinel 0.585ct loose
Sale price¥12,800
Tanzanite 1.680ct loose
Sale price¥29,800
[KEN] Fire opal 1.360ct loose
Sale price¥25,800
[Mr. KEN] Parti-color tourmaline from Africa 1.121ct loose (tricolor)
Sale price¥29,800
[Cat cut] Blue green tourmaline 5.5mm loose
Sale price¥12,800
Conch pearl (with flame pattern) 1.260ct loose
Sale price¥35,800
Veilinite from Pakistan (Vailinite) 0.168ct loose
Sale price¥55,800
Veilinite from Pakistan (Vailinite) 0.145ct loose
Sale price¥39,800
Star spinel 1.259ct loose
Sale price¥18,800
Star spinel 1.259ct loose
Sale price¥18,800
Star peridot 0.143ct loose
Sale price¥17,800
Star peridot 0.105ct loose
Sale price¥12,800
Russian demantoid garnet (horsetail recognized) 5.8mm/0.876ct loose
Sale price¥298,000
Musgravite 0.586ct loose Japanese and German
Sale price¥198,000
Spinel 0.545ct loose (rose cut)
Sale price¥9,800
Spinel 0.705ct loose (rose cut)
Sale price¥9,800
Purple spinel 0.424ct loose (rose cut)
Sale price¥9,800
[Mr. NOBU] Green Opal from Amazon [Collaboration] 7mm Loose
Sale price¥9,800
Taaffeite from Myanmar 0.187ct Ruth Japanese and German
Sale price¥39,800
Synthetic alexandrite 1.061ct loose
Sale price¥19,800
Aquamarine 1.250ct loose
Sale price¥8,800
Aquamarine 1.090ct loose
Sale price¥6,980
Mexican fire opal 0.980ct loose
Sale price¥25,800
Bangkacha sapphire (star sapphire) 1.370ct loose
Sale price¥12,800
[KEN] Mint color tourmaline 0.777ct loose
Sale price¥8,800
Color change Andesine 1.486ct loose
Sale price¥29,800
Pink tourmaline 0.530ct loose
Sale price¥7,980
Pink tourmaline 0.391ct loose
Sale price¥5,980
Pink tourmaline 0.326ct loose
Sale price¥4,980
Pink tourmaline 0.271ct loose
Sale price¥4,980
Bangkacha sapphire (star sapphire) 1.573ct loose
Sale price¥12,800
Bangkacha sapphire (star sapphire) 1.417ct loose
Sale price¥8,800
Emerald 0.716ct loose Japanese and German
Sale price¥88,000
Ruby 0.754ct Ruth Japanese and German
Sale price¥24,800
Pigeon Blood Ruby 0.590ct Loose AIGS
Sale price¥55,800
Pink tourmaline 0.158ct loose
Sale price¥8,800
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
The fifth reprint has been decided and is now on sale at bookstores nationwide and online.
Written by KARATZ, book “Jewelry Illustrated Book”
The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.
